Fast, Reliable Blown-In Insulation Across Cedar Park
Blown-in insulation in Cedar Park typically costs $1.80-$3.20 per square foot of attic floor, with most complete attic jobs running $2,400-$5,800 depending on whether air sealing is needed first. We’re usually on site within 24-48 hours of your call, and dispatch is coordinated from our Austin office so Cedar Park crews don’t cross metro traffic to reach you. If your home was built between 1999 and 2018 in one of the master-planned communities here, there’s a strong chance your original R-30 fiberglass has settled to an effective R-22 or lower. That’s not a guess; we’ve tested it repeatedly. Call (737) 259-8352 for a written price before any work starts.
Why Topside Attic Insulation Pflugerville Is Cedar Park’s Preferred Blown-In Insulation Company
We’ve worked in enough Cedar Park attics to know the difference between a Buttercup Creek two-story built in 2005 and a Twin Creeks plan from 2012. The framing is similar, the original insulation spec was identical, but the failure pattern depends on which side of the roof faces afternoon sun and whether the duct run was dropped through conditioned space or left exposed in the attic.
Our crews have sealed and insulated over 9,000 homes since 2016, and a significant share of those have been in Cedar Park’s 78613 and 78630 zip codes. Reviews from Cedar Park customers consistently mention two things: the before-and-after blower-door numbers we publish, and the fact that we text when the technician is en route. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.
Response time to Cedar Park is typically same-day or next-day for assessments, and we carry cellulose, fiberglass, and dense-pack equipment on every truck so we’re not scheduling a return visit for material delivery. The 365-Day Done Right Promise applies to every job, backed by a written scope and written warranty delivered before anyone lifts a tool.
We also know the local code context. Cedar Park falls under Williamson County and Travis County jurisdictions depending on your parcel, and permit requirements for attic insulation upgrades vary slightly between them. We handle that paperwork; you get a copy.
Our Blown-In Insulation Services in Cedar Park

Blown-In Cellulose
We use GreenFiber cellulose for most Cedar Park top-ups because it performs well in our climate zone and settles less than fiberglass under repeated thermal cycling. Cellulose runs $2.00-$3.20 per square foot installed in Cedar Park attics, including air sealing of top plates and penetrations. In the 2004 Twin Creeks home we reference below, GreenFiber cellulose blown to R-49 over a properly baffled vent line produced a measurable thermostat setpoint drop. We don’t recommend cellulose where active roof leaks exist; we find and fix those first.

Blown-In Fiberglass
For homeowners who prefer fiberglass or need to match existing material for warranty continuity, we stock Owens Corning blown-in fiberglass. Cedar Park’s original 1999-2018 tract installations were almost exclusively fiberglass, so matching the existing blanket matters if you’re topping up rather than removing. Fiberglass runs $1.80-$2.80 per square foot in Cedar Park. We never blow new insulation over an unsealed attic floor; that’s Haven Standard Clause 1, and it applies whether we’re using cellulose or fiberglass.

Dense-Pack Wall Insulation
Cedar Park’s 2×4 and 2×6 framed walls in communities like Buttercup Creek and Twin Creeks are often empty cavities with minimal insulation, particularly on gable ends and interior partition walls. Dense-pack cellulose fills these cavities at $3.50-$5.50 per square foot of wall area, requiring minimal interior drywall repair. We dense-packed the open bays in that 2004 Twin Creeks home before blowing attic insulation, and the combined envelope improvement showed in the blower-door result.

Blown-In Top-Up
This is the defining blown-in insulation job in Cedar Park right now. A generation of homes built to minimum-code R-30 has hit the same maintenance window simultaneously, and the original fiberglass has compacted into a thin, spotty mat. A blown-in top-up runs $1,600-$3,400 for a typical 2,200-square-foot Cedar Park home, but only after we R-value test the existing insulation and static-pressure test any duct runs in the attic. Blind top-ups without testing miss the actual problem; we’ve seen intact-looking blankets test at R-18 because of compression and air infiltration beneath them.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Cedar Park
We source materials from Owens Corning, GreenFiber, and Icynene among others, with no proprietary product lock-in. What we stock locally depends on what Cedar Park homes actually need: Owens Corning blown-in fiberglass for matching original tract installations, GreenFiber cellulose for top-ups and dense-pack work, and Icynene spray foam for rim-joist and hatch upgrades where air sealing demands it. We don’t push one product over another; we test, we measure, we specify. Turnaround on standard materials is same-day; specialty orders rarely exceed 48 hours.
Common Blown-In Insulation Problems We See in Cedar Park Homes

- Settled R-30 fiberglass performing at R-22 or lower. Cedar Park’s 1999-2018 builder-grade tract homes were insulated to then-current IECC minimums with blown-in fiberglass that has compacted after 15-20 years of attic temperatures hitting 140-160°F. The blanket looks intact from the hatch; an R-value probe tells the real story.
- Air infiltration bypassing insulation at penetrations. Can lights, top plates, plumbing chases, and pull-down attic hatches in Cedar Park homes let hot-humid summer air and February cold drives bypass the insulation entirely. Winter Storm Uri exposed how badly these envelopes were under-sealed; we still find unsealed hatches and unblocked soffit vents in half the homes we assess.
- HVAC ducts running through unconditioned attic space. In Twin Creeks and Buttercup Creek two-story plans, supply ducts lose capacity when the attic around them overheats. Settled blown-in insulation leaves the duct run exposed even when the air handler is working correctly. We static-pressure test the duct before quoting any insulation work.
- Inadequate baffle lines and vented soffits blocked by insulation. Original Cedar Park installations often skipped proper baffles at the eaves, or subsequent top-ups by other contractors buried the soffit vents. That creates moisture risk in our hot-humid climate zone and degrades the effective R-value through wind washing.
Pricing for Blown-In Insulation in Cedar Park, TX
Most complete blown-in attic insulation jobs in Cedar Park run $2,400-$5,800 for a typical 2,000-2,800 square foot home, with blown-in top-ups on their own at $1,600-$3,400. Dense-pack wall insulation adds $3.50-$5.50 per square foot of wall area. What moves you within those ranges: whether air sealing is needed first (it usually is), whether existing insulation must be removed rather than topped, accessibility of the attic space, and whether duct testing reveals additional work.
We provide a written price before any work starts, always. That price includes the written scope, the written warranty, and the Documented Photo Record you’ll receive when the crew leaves. For applicable jobs, before-and-after blower-door numbers are included so you can verify the air-sealing result. Free Second Opinion on any written estimate: bring us a competing quote and we’ll read it with you. Call (737) 259-8352.
We Also Serve Cities Near Cedar Park

Our crews work throughout the northern Austin metro, including Cedar Park, Leander, Round Rock, Pflugerville, and Georgetown. Dispatch is coordinated from our Austin office, so scheduling to any of these cities avoids cross-metro routing delays. If you’re in Leander or Round Rock and found this page, the same testing protocols and pricing structure apply; only the drive time changes.
Serving Cedar Park, TX - Our Local Coverage Area
We’re based in the Cedar Park area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Blown-In Insulation in Cedar Park

You need the R-value test. Visual inspection can’t distinguish between intact-looking fiberglass at its original R-30 and the same material compacted to R-18 or R-20 after nearly 20 years of thermal cycling. In Cedar Park’s climate zone, that difference matters. We probe the existing blanket at multiple points and photograph the results; you get those photos in your Documented Photo Record. Call (737) 259-8352 to schedule testing - estimates are free.
Because the problem is often in the attic, not the air handler. In Twin Creeks and similar Cedar Park communities, HVAC supply ducts frequently run through unconditioned attic space. When the original R-30 fiberglass settles and compacts, those ducts lose capacity to attic heat even when the AC is properly charged and sized. We static-pressure test the duct run and R-value test the insulation before quoting; replacing equipment without fixing the envelope is expensive guesswork. Call (737) 259-8352 for duct and insulation testing.
Cellulose is usually the better top-up for Cedar Park’s settled fiberglass attics because it resists further settling and provides better coverage at irregular depths. GreenFiber cellulose, which we stock, also performs well in our hot-humid climate zone. Fiberglass is appropriate when matching existing material for warranty continuity or when specific manufacturer specs are required. We recommend based on testing, not preference. Most Cedar Park cellulose top-ups run $2.00-$3.20 per square foot; fiberglass runs $1.80-$2.80. Call (737) 259-8352 for a written price on your specific attic.
Yes. February 2021 exposed how badly most Cedar Park tract homes were air-sealed at the attic envelope; homeowners who had never worried about cold-weather performance suddenly had frozen pipes and massive heat loss. Since then, we include rim-joist and attic hatch sealing as standard scope on Cedar Park jobs rather than treating them as add-ons. The IECC Climate Zone 2 designation didn’t change, but local awareness of envelope performance did. Call (737) 259-8352 for an assessment that includes air-sealing priority.
It will lower your bill if done after proper air sealing and testing, not if it’s a blind top-up over an unsealed floor. In that 2004 Twin Creeks home, the homeowner’s July second-floor thermostat setpoint dropped four degrees with no other change after we sealed, dense-packed, and blew GreenFiber cellulose to R-49. The blower-door test dropped from 4,800 CFM50 to under 2,400. We publish those numbers so you can verify the result, not just take our word. Call (737) 259-8352 for a written price and performance projection.
Written by Wes Okafor, Owner at Topside Attic Insulation Pflugerville, serving Cedar Park since 2016.